Note 5 - Income (Loss) Per Share (Details) - Schedule of Earnings Per Share, Basic and Diluted - USD ($)	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Basic net income (loss) per share computation:
Net income(loss)	$ 279,066	$ (384,005)
Weighted-average common shares outstanding	3,256,887	3,251,387
Basic net income (loss) per share	$ 0.09	$ (0.12)
Diluted net income (loss) per share computation
Net income (loss)	$ 279,066	$ (384,005)
Add: Change in fair value of warrants	198,000	0
Diluted income (loss)	$ 81,066	$ (384,005)
Weighted-average common shares outstanding	3,256,887	3,251,387
Incremental shares attributable to the assumed exercise of outstanding stock options and warrants	63,555	0
Total adjusted weighted-average shares	3,320,442	3,251,387
Diluted net income (loss) per share	$ 0.02	$ (0.12)